So you need to realize that, at its basic level, it is a response to a CLAIM not a belief.
Im sorry if I'm jumping in unwelcome but I can't make sense out of this statement.
- atheist (n.)
- 1570s, from French athéiste (16c.), from Greek atheos "without god, denying the gods; abandoned of the gods; godless, ungodly," from a- "without" + theos"a god" (see theo-).
This was how it was understood originally. It originates from Greece, a culture which when dealing with God was talking about the gods of their pantheon. When a person was "atheos" in Greece it meant they were without the gods (of the Greek pantheon).
Now since then, our culture and language have evolved. To be, "a - theist," means to be, "without theism." You have likely never heard the words 'adeist' or 'adeism' which would mean, "without deism," and this is because (at least in my opinion) adeism is unnecessary.
Anyway, my point is this, atheism is position lacking theism. Theism is,
Atheism is all about this belief, not claims. It's a non-theistic position, while a theistic position (as defined here by my handy dictionary app) is a belief in a personal God.
It is important though to separate theism and deism. Atheism is not a position against a deistic view, only a theistic view. I keep saying that to make the point that atheism is not about beliefs, it is a response and position taken against theism - one specific belief.
(this argument based strictly on etymology. To most people atheism is a position against either a theistic or deistic God, but linguistically I think this incorrect.)